All Atomic 4s in C27s are direct drive. The pitch of the factory installed prop coupled with the direct drive transmission only allows the engine to reach an RPM equivalent to about 13.5hp.
My personal experiences with my (former) Atomic 4 were very poor. While it is an easy engine to work on keep in mind that the production line shutdown 30 years ago. ~Dan H. --- On Tue, 3/2/10, Jeremy Harvey <[email protected]> wrote: From: Jeremy Harvey <[email protected]> Subject: [IC27A] Atomic 4 direct drive or reduction To: [email protected] Date: Tuesday, March 2, 2010, 11:33 AM I have a direct drive, I believe most C27s would use a direct drive also, but i could be wrong. Jeremy SF, CA Hull 3811 [Non-text portions of this message have been removed]
